Paneling for hopper doors for railway cars



Aug." 9, 1927.l 1,638,142

c; D. BoNsALL PANELING FOR HOPPER DOORS FOR RAILWAY GARS Filed Aug, 17 1925 Patented i Aug. 9, 1927. e

T ES

unirse sra CHARLES DAVID BONSALL,l OF CHICAGO,

Pars-Nr omer..

ELLINIS, ASSIGNOR TO UNION METAL PROD- PANELING Fon Horrnn noons 'FonnaILwnY Cans.

Application filed August 17, 1925. Serial No. 50,871.

The invention relates to Va railway dump car having a door forming a part of the 'car for vretaining the loadvtherein, which door is provided with hinges adjacent one of its sides and is capable of being dropped or swung open so that the load in discharging slides or passes over the upper surface of the door. Any means of raising the door to the closed positiornand any means for locking and releasing the door, may be employed with my device. door for this purpose must be very strong and durable because:

First. lt is part of the floor of the car and as such must sustain the load as well as the impact blowwhen the car is in inotion. f

Second. The car is frequent y loaded from chutes or tipples from a height of ten feet or more, causing the load to be dropped directly upon the doors.

Third. Clam shell buckets are frequently used to unload such cars and it is not un-` common for these buckets to rest upon and drag over the doors.

Fourth. When the door suddenly comes to rest after being dropped it is not only subject to a severe shock but it must sustain the severe impact thrust of the load which, of course, follows the door. Fifth. As the load is theoretically equally distributed, the door must be strong over its entire area and must be capable of transmitting the resulting strains to the car body Without much deiiection and no substantial distortion.

-Any bending of the corners would cause a leali of the lading, especially of such line material as sand, chats. etc.V Any bending or warping might interfere with the complete closing and locking of the door. Y

As it costs as much to haul a ton of car as it does to haul a ton of paying freight, it is imperative that the oar and any part thereof be as light as possible.V Furthermore, the total weightk of car and freight is determined by the strength of certain standard axles so that the lighter the car the greater amount offreight a given car will be allowed to carry. `With my arrangement I obtain a strong, light and inexpensive door.

the door or dropping of In the drawings:

Fig. 1 showsa door my invention.

Fig. 2 is a section on linefZ-Q of Fig.

Fig. 3 is a section on line 22 of 'Fi-g. showing'a modification.y i

Fig. et is a section on line 4 4 of Fig. showing the hinge relation.

Fig. 5 is a section on line 1 -4 of Figl showing the hinge relation to a modified form.

Any number of panels may be used of various depths, position and shape and still formed according to 'come' within the scope of this invention.

ln Fig. 2 numeral 7 is the side Walls of panel pressed fromthe main portion 6 of the plate. Numeral S is the side walls of a panel pressed from the elevated portion of thel iirst mentioned panel and numeral 9 is the side walls of a panel pressed from the elevated portion Aof the last mentioned panel. `Margins 10 and 11 are thus formed between panel within panel.

The marginsv 1B and 14 at the sides of the door are wider' than the margins 6, 10 and l1 at the ends of the door. The walls 7, 8 and 9, parallel'to the ends of the door, are

then closer together' than the walls '16, 17 p and 18, parallel to the sides of the door.

In some cars the hoppers rare narrower at the bottom than at the top of the door opening and the door is made substantially the same shape as the hopper opening. It is preferable to have the embossed panels conform to the shape of the door, or at least, approximately/so, as illustrated.

InFig. 3, 7 is pressed from the main portion 6 of the plate. Numeral 8 is the side walls of a' the side walls of a panel panel pressed from the portion of the lirst l mentioned panel in an opposite direction thereto leaving `flat margins 10 and numeral 9 is the side walls of-a panel pressed from the elevated portion ofthe last mentioned panel and in the same direction leaving flat margins 11. The panel 12 of the last mentioned embossment is in substantially the same plane as the main portion 6 of the plate.

Figs. 4 and 5 show the relation of the hinge 2() to the body of the door. The hinge 'spans the embossed panel and is secured (Q2) to the margin on the opposite sides of a panel, thus increasing the strength of the embossed plate by tying the opposite portions of the margin together. A strut 2l may be inserted betweenthe hinge and the embossed panel and be secured thereto (223-24).

In such an arrangement the panel and hinge are the compression and tension members, respectively, oi' a truss.

I claim:

l. A plate metal door for a railway car having an embossed panel oressed from the plane ot the plate with fiat margins surrounding said panel, and an embossed panel pressed trom thev lirst mentioned panel with .ilat margins surrounding the last mentioned panel, the margins at the sides of the panels being narrower than the margins at the ends of the panels.

2. A plate metal' door for a railway car having an embossed panel pressed Jfrom the plane of the plate with flat margins surrounding said panel, and an embossed panel pressed ifrom the first mentioned panel .with i'lat margins surrounding the last mentioned panel, said embossed panels projecting in the same direction, the margins at the sides of the panels being narrower than the marl gins at the ends of the panels.

3. A plate metal door for a railway car having an embossed panel pressed from the plane oit the plate with flat margins surrounding said panel, and an embossed panel iressed from the irst mentioned panel with flat margins surrounding the last mentioned panel, said embossed panels varying in depth, the margins at the sides of the panels being narrower than the margins at the ends of the panels.

flat margins surrounding the last mentioned f panel, said embossed Ypanels projecting in the same direction, and varying in depth, the margins at the sides yof the panels being narrower than the margins at the ends oi vthe panels.

5. The combination of a plate metal door i'or a railway car having a panel pressed from the plane of the plate with a margin surrounding the panel, and a hinge spanning said panel and secured to said margin on the opposite sides of said panel.

. 6. The combination of a plate metal door for a railway car having a panel pressed from the plane of the plate lwith a margin surrounding the panel, a hinge spanning said panel and secured to said margin on the opposite sides'of said panel, Vand a strut positioned between and secured to said panel y and said hinge.

7. ln combination with the other elements ot a railway dump car, a plate metal door having succession of panels, each formed consecutively within another panel forming flat margins between the panels.k

-8. In combination'with the other elements of a railway dump ear, a plate metal door having a succession ot panels, each formed consecutively within another panel forming flat margins between the panels with the margins on opposite sides of' the panels being substantially equal in Width.

CHARLES DAVID BONSALL. 

